In the Linux kernel, the following vulnerability has been resolved:

iio: imu: adis16550: fix stack leak in trigger handler

adis16550_trigger_handler() declares the scan data array on the stack
without initializing it. The memcpy() at the bottom fills only the
first 28 bytes (TEMP + 6 channels of GYRO/ACCEL data), and
iio_push_to_buffers_with_timestamp() writes the s64 timestamp at the
8-byte-aligned offset 32. Bytes 28-31 remain uninitialized stack data
which leaks to userspace on ever trigger.

Fix this all by just zero-initializing the structure on the stack.

References

• https://nvd.nist.gov/vuln/detail/CVE-2026-63966
• https://git.kernel.org/stable/c/474f8928d50b09f7dcf507049f08732640b88b49
• https://git.kernel.org/stable/c/c2c255444392872cbbf46d640cb3a938e8000309
• https://git.kernel.org/stable/c/ce582b22dd2ff15ac99101c22ec1559d1febe2ff